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Mast

Category: Drilling accessory equipment
Key words:Drilling accessory equipmentMast
Service Hotline:+86-513-87635480
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Product description
Parameters

Main Features

The mast (derrick) type is generally classified as A type, K type, tower type and mast type etc.

A type mast, its leg section is rectangular or triangle shape, with better loading capacity and stability, connected with pins between sections, installed at low level and erected or lowered down integrally by drawworks and A-frame.

K type mast, namely front opening mast, its transverse section is a П shape truss structure, its both sides are composed of several pieces or segments, its back is rigid frame or pole system of truss, connected with pins or bolts between segments and members, may be installed at low level and erected or lowered down integrally by drawworks or hydraulic cylinder, has the advantages of convenient installation and teardown, excellent rigidity.

Conforming to API Spec 4F, marked with API

SPECIFICATIONAS:

Model

JJ60/31-K

JJ90/38-K

JJ135/31-K

JJ225/42-KS

JJ225/42-K

Max. static load    kN

600

900

1350

2250

2250

Effective height     m

31

38

31

42

42

Top span (front×side)   m

1.2×1.2

1.4×1.8

1.6×1.8

1.8×2

1.9×2

Bottom span     m

4.8

5.5

5.3

5

7

Height of racking board  m

17

24.5,25.5,26.5

17,17.5

25.5,26.5

24.5,25.5,26.5

Capacity of racking board    m

1000

1500

2000

4000

4000

Wind withstanding capacity

Full setback and no hook load  m/s

36

36

36

36

36

No setback, no hook load  m/s

47.8

47.8

47.8

47.8

47.8

Mast erecting m/s

≤8.3

≤8.3

≤8.3

≤8.3

≤8.3

Weight        kg

16000

27170

22000

24780

30000

Note:A--A type    K--K type   KS--K type, telescope   

 

 

 

 

 

 

 

Model

JJ225/43-K

JJ315/45-K

JJ315/45-K

JJ315/45-K

JJ170/41-A

Max. static load    kN

2250

3150

3150

3150

1700

Effective height     m

43

45

45

45

41

Top span (front×side)   m

1.9×2

2.3×2.3

2.1×2.05

2.1×2.05

1.7×2

Bottom span     m

8

8.3

9.11

8

7.5

Height of racking board     m

24.5,25.5,26.5

24.5,25.5,26.5

24.5,25.5,26.5

24.5,25.5,26.5

24.5,25.5,26.5

Capacity of racking board m

4000

5000

5000

5000

3000

Wind withstanding capacity

Full setback and no hook load  m/s

36

36

36

36

36

No setback, no hook load  m/s

47.8

47.8

47.8

47.8

47.8

Mast erecting m/s

≤8.3

≤8.3

≤8.3

≤8.3

≤8.3

Weight        kg

43180

68000

57360

60600

37900

Note:A--A type    K--K type   KS--K type, telescope   

 

 

 

 

 

 

 

Model

JJ450/45-K

JJ450/45-K

JJ450/45-K

JJ450/45-K

HXJJ135/33-KS

Max. static load    kN

4500

4500

4500

4500

1350

Effective height     m

45

45.5

45

45

33

Top span (front×side)   m

2.2×2.2

2.5×2.3

2.2×2.2

2.5×2.2

1.8×1.65

Bottom span     m

9.11

8.3

9

10

4×4.7

Height of racking board m

24.5,25.5,26.5

24.5,25.5,26.5

24.5,25.5,26.5

24.5,25.5,26.5

16,16.5,17.5

Capacity of racking board m

7000

7000

7000

7000

2000

Wind withstanding capacity

Full setback and no hook load  m/s

36

36

36

36

36

No setback, no hook load  m/s

47.8

47.8

47.8

47.8

47.8

Mast erecting m/s

≤8.3

≤8.3

≤8.3

≤8.3

≤8.3

Weight        kg

62400

91200

75350

104780

31500

Note:A--A type    K--K type   KS--K type, telescope   

 

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